External Input And Output - Outdoor Unit - Fujitsu Airstage V series Service Manual

2-4-3 Outdoor Unit
1. Input
Heat and Cool switch (Heat pump and Master unit only)
"Cooling priority" or "Heating priority" can be selected by this input.
CONNECTOR
CN50
(YELLOW)
CN52
(GREEN)
On
CN50
Off
On
CN52
Off
Cooling
Priority
Indoor
Heating
Priority
Unit
R.C.
Priority
2. Output
(1) Operation display (Master unit only)
This output indicates the outdoor unit's "Operation" status.
(2) Error display (Master unit only)
This output indicates the outdoor unit and connected indoor
unit's "Normal" or "Error" status.
CONNECTOR OUTPUT VOLTAGE
CN48
(BLUE)
CN49
(BLACK)
Maximum output current (CN48, CN49) is 15mA.
(Output voltage DC12V + 5%)
A twisted-pair cable(AWG22) should be used.
Maximum length of cable is 25m.
(3) Crank case heater ( Master unit only )
3. Parts
Following cord (service parts) is required.
Please use the parts number shown
below to order the cord from your
sales representative.
INPUT
STATUS
SIGNAL
OFF Remote Controller priority
ON External input priority
OFF Cooling priority
ON Heating priority
STATUS
0V Stop
12V Operation
0V Normal
12V Error
02-40
REMARKS
CN50 need to
be "ON".
Input1
Input2
Operation
Indicator
Error
Indicator
Operation
Stop
CN48
12V
0V
Error
Normal
CN49
12V
0V
1
2
3
CN 16
4
(GREEN)
Name and shapes
BASE
HEATER
WIRE
EXTERNAL
INPUT
WIRE
1
CN50
(YELLOW)
2
1
CN52
2
(GREEN)
P.C.B
+
1
CN 48
2
(BLUE)
-
P.C.B
+
1
CN 49
(BLACK)
2
-
P.C.B
Crank case heater
(Field supply)
AC220-240V,35W
Q'ty Parts No.
1 9368776008
1 9368777005